Release 4.11 drivers/staging/rtl8192u/r819xU_cmdpkt.c
/******************************************************************************
*
* (c) Copyright 2008, RealTEK Technologies Inc. All Rights Reserved.
*
* Module: r819xusb_cmdpkt.c
* (RTL8190 TX/RX command packet handler Source C File)
*
* Note: The module is responsible for handling TX and RX command packet.
* 1. TX : Send set and query configuration command packet.
* 2. RX : Receive tx feedback, beacon state, query configuration
* command packet.
*
* Function:
*
* Export:
*
* Abbrev:
*
* History:
*
* Date Who Remark
* 05/06/2008 amy Create initial version porting from
* windows driver.
*
******************************************************************************/
#include "r8192U.h"
#include "r819xU_cmdpkt.h"
rt_status SendTxCommandPacket(struct net_device *dev, void *pData, u32 DataLen)
{
struct r8192_priv *priv = ieee80211_priv(dev);
struct sk_buff *skb;
struct cb_desc *tcb_desc;
unsigned char *ptr_buf;
/* Get TCB and local buffer from common pool.
* (It is shared by CmdQ, MgntQ, and USB coalesce DataQ)
*/
skb = dev_alloc_skb(USB_HWDESC_HEADER_LEN + DataLen + 4);
if (!skb)
return RT_STATUS_FAILURE;
memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
tcb_desc->queue_index = TXCMD_QUEUE;
tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_NORMAL;
tcb_desc->bLastIniPkt = 0;
skb_reserve(skb, USB_HWDESC_HEADER_LEN);
ptr_buf = skb_put(skb, DataLen);
memcpy(ptr_buf, pData, DataLen);
tcb_desc->txbuf_size = (u16)DataLen;
if (!priv->ieee80211->check_nic_enough_desc(dev, tcb_desc->queue_index) ||
(!skb_queue_empty(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index])) ||
(priv->ieee80211->queue_stop)) {
RT_TRACE(COMP_FIRMWARE, "=== NULL packet ======> tx full!\n");
skb_queue_tail(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index], skb);
} else {
priv->ieee80211->softmac_hard_start_xmit(skb, dev);
}
return RT_STATUS_SUCCESS;
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_counttxstatistic()
*
* Overview:
*
* Input: PADAPTER pAdapter
* CMPK_TXFB_T *psTx_FB
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/12/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_count_txstatistic(struct net_device *dev, cmpk_txfb_t *pstx_fb)
{
struct r8192_priv *priv = ieee80211_priv(dev);
#ifdef ENABLE_PS
RT_RF_POWER_STATE rtState;
pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
(pu1Byte)(&rtState));
/* When RF is off, we should not count the packet for hw/sw synchronize
* reason, ie. there may be a duration while sw switch is changed and
* hw switch is being changed.
*/
if (rtState == eRfOff)
return;
#endif
#ifdef TODO
if (pAdapter->bInHctTest)
return;
#endif
/* We can not know the packet length and transmit type:
* broadcast or uni or multicast. So the relative statistics
* must be collected in tx feedback info.
*/
if (pstx_fb->tok) {
priv->stats.txfeedbackok++;
priv->stats.txoktotal++;
priv->stats.txokbytestotal += pstx_fb->pkt_length;
priv->stats.txokinperiod++;
/* We can not make sure broadcast/multicast or unicast mode. */
if (pstx_fb->pkt_type == PACKET_MULTICAST) {
priv->stats.txmulticast++;
priv->stats.txbytesmulticast += pstx_fb->pkt_length;
} else if (pstx_fb->pkt_type == PACKET_BROADCAST) {
priv->stats.txbroadcast++;
priv->stats.txbytesbroadcast += pstx_fb->pkt_length;
} else {
priv->stats.txunicast++;
priv->stats.txbytesunicast += pstx_fb->pkt_length;
}
} else {
priv->stats.txfeedbackfail++;
priv->stats.txerrtotal++;
priv->stats.txerrbytestotal += pstx_fb->pkt_length;
/* We can not make sure broadcast/multicast or unicast mode. */
if (pstx_fb->pkt_type == PACKET_MULTICAST)
priv->stats.txerrmulticast++;
else if (pstx_fb->pkt_type == PACKET_BROADCAST)
priv->stats.txerrbroadcast++;
else
priv->stats.txerrunicast++;
}
priv->stats.txretrycount += pstx_fb->retry_cnt;
priv->stats.txfeedbackretry += pstx_fb->retry_cnt;
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_handle_tx_feedback()
*
* Overview: The function is responsible for extract the message inside TX
* feedbck message from firmware. It will contain dedicated info in
* ws-06-0063-rtl8190-command-packet-specification.
* Please refer to chapter "TX Feedback Element".
* We have to read 20 bytes in the command packet.
*
* Input: struct net_device *dev
* u8 *pmsg - Msg Ptr of the command packet.
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/08/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_handle_tx_feedback(struct net_device *dev, u8 *pmsg)
{
struct r8192_priv *priv = ieee80211_priv(dev);
cmpk_txfb_t rx_tx_fb;
priv->stats.txfeedback++;
/* 1. Extract TX feedback info from RFD to temp structure buffer. */
/* It seems that FW use big endian(MIPS) and DRV use little endian in
* windows OS. So we have to read the content byte by byte or transfer
* endian type before copy the message copy.
*/
/* Use pointer to transfer structure memory. */
memcpy((u8 *)&rx_tx_fb, pmsg, sizeof(cmpk_txfb_t));
/* 2. Use tx feedback info to count TX statistics. */
cmpk_count_txstatistic(dev, &rx_tx_fb);
/* Comment previous method for TX statistic function. */
/* Collect info TX feedback packet to fill TCB. */
/* We can not know the packet length and transmit type: broadcast or uni
* or multicast.
*/
}
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| Total | 67 | 100.00% | 3 | 100.00% |
static void cmdpkt_beacontimerinterrupt_819xusb(struct net_device *dev)
{
struct r8192_priv *priv = ieee80211_priv(dev);
u16 tx_rate;
/* 87B have to S/W beacon for DTM encryption_cmn. */
if (priv->ieee80211->current_network.mode == IEEE_A ||
priv->ieee80211->current_network.mode == IEEE_N_5G ||
(priv->ieee80211->current_network.mode == IEEE_N_24G &&
(!priv->ieee80211->pHTInfo->bCurSuppCCK))) {
tx_rate = 60;
DMESG("send beacon frame tx rate is 6Mbpm\n");
} else {
tx_rate = 10;
DMESG("send beacon frame tx rate is 1Mbpm\n");
}
rtl819xusb_beacon_tx(dev, tx_rate); /* HW Beacon */
}
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| Total | 101 | 100.00% | 4 | 100.00% |
/*-----------------------------------------------------------------------------
* Function: cmpk_handle_interrupt_status()
*
* Overview: The function is responsible for extract the message from
* firmware. It will contain dedicated info in
* ws-07-0063-v06-rtl819x-command-packet-specification-070315.doc.
* Please refer to chapter "Interrupt Status Element".
*
* Input: struct net_device *dev
* u8 *pmsg - Message Pointer of the command packet.
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/12/2008 amy Add this for rtl8192 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_handle_interrupt_status(struct net_device *dev, u8 *pmsg)
{
cmpk_intr_sta_t rx_intr_status; /* */
struct r8192_priv *priv = ieee80211_priv(dev);
DMESG("---> cmpk_Handle_Interrupt_Status()\n");
/* 1. Extract TX feedback info from RFD to temp structure buffer. */
/* It seems that FW use big endian(MIPS) and DRV use little endian in
* windows OS. So we have to read the content byte by byte or transfer
* endian type before copy the message copy.
*/
rx_intr_status.length = pmsg[1];
if (rx_intr_status.length != (sizeof(cmpk_intr_sta_t) - 2)) {
DMESG("cmpk_Handle_Interrupt_Status: wrong length!\n");
return;
}
/* Statistics of beacon for ad-hoc mode. */
if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
/* 2 maybe need endian transform? */
rx_intr_status.interrupt_status = *((u32 *)(pmsg + 4));
DMESG("interrupt status = 0x%x\n",
rx_intr_status.interrupt_status);
if (rx_intr_status.interrupt_status & ISR_TxBcnOk) {
priv->ieee80211->bibsscoordinator = true;
priv->stats.txbeaconokint++;
} else if (rx_intr_status.interrupt_status & ISR_TxBcnErr) {
priv->ieee80211->bibsscoordinator = false;
priv->stats.txbeaconerr++;
}
if (rx_intr_status.interrupt_status & ISR_BcnTimerIntr)
cmdpkt_beacontimerinterrupt_819xusb(dev);
}
/* Other informations in interrupt status we need? */
DMESG("<---- cmpk_handle_interrupt_status()\n");
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_handle_query_config_rx()
*
* Overview: The function is responsible for extract the message from
* firmware. It will contain dedicated info in
* ws-06-0063-rtl8190-command-packet-specification. Please
* refer to chapter "Beacon State Element".
*
* Input: u8 *pmsg - Message Pointer of the command packet.
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/12/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_handle_query_config_rx(struct net_device *dev, u8 *pmsg)
{
cmpk_query_cfg_t rx_query_cfg;
/* 1. Extract TX feedback info from RFD to temp structure buffer. */
/* It seems that FW use big endian(MIPS) and DRV use little endian in
* windows OS. So we have to read the content byte by byte or transfer
* endian type before copy the message copy.
*/
rx_query_cfg.cfg_action = (pmsg[4] & 0x80000000) >> 31;
rx_query_cfg.cfg_type = (pmsg[4] & 0x60) >> 5;
rx_query_cfg.cfg_size = (pmsg[4] & 0x18) >> 3;
rx_query_cfg.cfg_page = (pmsg[6] & 0x0F) >> 0;
rx_query_cfg.cfg_offset = pmsg[7];
rx_query_cfg.value = (pmsg[8] << 24) | (pmsg[9] << 16) |
(pmsg[10] << 8) | (pmsg[11] << 0);
rx_query_cfg.mask = (pmsg[12] << 24) | (pmsg[13] << 16) |
(pmsg[14] << 8) | (pmsg[15] << 0);
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_count_tx_status()
*
* Overview: Count aggregated tx status from firmwar of one type rx command
* packet element id = RX_TX_STATUS.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/12/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_count_tx_status(struct net_device *dev,
cmpk_tx_status_t *pstx_status)
{
struct r8192_priv *priv = ieee80211_priv(dev);
#ifdef ENABLE_PS
RT_RF_POWER_STATE rtstate;
pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
(pu1Byte)(&rtState));
/* When RF is off, we should not count the packet for hw/sw synchronize
* reason, ie. there may be a duration while sw switch is changed and
* hw switch is being changed.
*/
if (rtState == eRfOff)
return;
#endif
priv->stats.txfeedbackok += pstx_status->txok;
priv->stats.txoktotal += pstx_status->txok;
priv->stats.txfeedbackfail += pstx_status->txfail;
priv->stats.txerrtotal += pstx_status->txfail;
priv->stats.txretrycount += pstx_status->txretry;
priv->stats.txfeedbackretry += pstx_status->txretry;
priv->stats.txmulticast += pstx_status->txmcok;
priv->stats.txbroadcast += pstx_status->txbcok;
priv->stats.txunicast += pstx_status->txucok;
priv->stats.txerrmulticast += pstx_status->txmcfail;
priv->stats.txerrbroadcast += pstx_status->txbcfail;
priv->stats.txerrunicast += pstx_status->txucfail;
priv->stats.txbytesmulticast += pstx_status->txmclength;
priv->stats.txbytesbroadcast += pstx_status->txbclength;
priv->stats.txbytesunicast += pstx_status->txuclength;
priv->stats.last_packet_rate = pstx_status->rate;
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_handle_tx_status()
*
* Overview: Firmware add a new tx feedback status to reduce rx command
* packet buffer operation load.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/12/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_handle_tx_status(struct net_device *dev, u8 *pmsg)
{
cmpk_tx_status_t rx_tx_sts;
memcpy((void *)&rx_tx_sts, (void *)pmsg, sizeof(cmpk_tx_status_t));
/* 2. Use tx feedback info to count TX statistics. */
cmpk_count_tx_status(dev, &rx_tx_sts);
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_handle_tx_rate_history()
*
* Overview: Firmware add a new tx rate history
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/12/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
static void cmpk_handle_tx_rate_history(struct net_device *dev, u8 *pmsg)
{
cmpk_tx_rahis_t *ptxrate;
u8 i, j;
u16 length = sizeof(cmpk_tx_rahis_t);
u32 *ptemp;
struct r8192_priv *priv = ieee80211_priv(dev);
#ifdef ENABLE_PS
pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
(pu1Byte)(&rtState));
/* When RF is off, we should not count the packet for hw/sw synchronize
* reason, ie. there may be a duration while sw switch is changed and
* hw switch is being changed.
*/
if (rtState == eRfOff)
return;
#endif
ptemp = (u32 *)pmsg;
/* Do endian transfer to word alignment(16 bits) for windows system.
* You must do different endian transfer for linux and MAC OS
*/
for (i = 0; i < (length/4); i++) {
u16 temp1, temp2;
temp1 = ptemp[i] & 0x0000FFFF;
temp2 = ptemp[i] >> 16;
ptemp[i] = (temp1 << 16) | temp2;
}
ptxrate = (cmpk_tx_rahis_t *)pmsg;
if (ptxrate == NULL)
return;
for (i = 0; i < 16; i++) {
/* Collect CCK rate packet num */
if (i < 4)
priv->stats.txrate.cck[i] += ptxrate->cck[i];
/* Collect OFDM rate packet num */
if (i < 8)
priv->stats.txrate.ofdm[i] += ptxrate->ofdm[i];
for (j = 0; j < 4; j++)
priv->stats.txrate.ht_mcs[j][i] += ptxrate->ht_mcs[j][i];
}
}
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/*-----------------------------------------------------------------------------
* Function: cmpk_message_handle_rx()
*
* Overview: In the function, we will capture different RX command packet
* info. Every RX command packet element has different message
* length and meaning in content. We only support three type of RX
* command packet now. Please refer to document
* ws-06-0063-rtl8190-command-packet-specification.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 05/06/2008 amy Create Version 0 porting from windows code.
*
*---------------------------------------------------------------------------
*/
u32 cmpk_message_handle_rx(struct net_device *dev,
struct ieee80211_rx_stats *pstats)
{
int total_length;
u8 cmd_length, exe_cnt = 0;
u8 element_id;
u8 *pcmd_buff;
/* 0. Check inpt arguments. If is is a command queue message or
* pointer is null.
*/
if (pstats == NULL)
return 0; /* This is not a command packet. */
/* 1. Read received command packet message length from RFD. */
total_length = pstats->Length;
/* 2. Read virtual address from RFD. */
pcmd_buff = pstats->virtual_address;
/* 3. Read command packet element id and length. */
element_id = pcmd_buff[0];
/* 4. Check every received command packet content according to different
* element type. Because FW may aggregate RX command packet to
* minimize transmit time between DRV and FW.
*/
/* Add a counter to prevent the lock in the loop from being held too
* long
*/
while (total_length > 0 && exe_cnt++ < 100) {
/* We support aggregation of different cmd in the same packet */
element_id = pcmd_buff[0];
switch (element_id) {
case RX_TX_FEEDBACK:
cmpk_handle_tx_feedback(dev, pcmd_buff);
cmd_length = CMPK_RX_TX_FB_SIZE;
break;
case RX_INTERRUPT_STATUS:
cmpk_handle_interrupt_status(dev, pcmd_buff);
cmd_length = sizeof(cmpk_intr_sta_t);
break;
case BOTH_QUERY_CONFIG:
cmpk_handle_query_config_rx(dev, pcmd_buff);
cmd_length = CMPK_BOTH_QUERY_CONFIG_SIZE;
break;
case RX_TX_STATUS:
cmpk_handle_tx_status(dev, pcmd_buff);
cmd_length = CMPK_RX_TX_STS_SIZE;
break;
case RX_TX_PER_PKT_FEEDBACK:
/* You must at lease add a switch case element here,
* Otherwise, we will jump to default case.
*/
cmd_length = CMPK_RX_TX_FB_SIZE;
break;
case RX_TX_RATE_HISTORY:
cmpk_handle_tx_rate_history(dev, pcmd_buff);
cmd_length = CMPK_TX_RAHIS_SIZE;
break;
default:
RT_TRACE(COMP_ERR, "---->%s():unknown CMD Element\n",
__func__);
return 1; /* This is a command packet. */
}
total_length -= cmd_length;
pcmd_buff += cmd_length;
}
return 1; /* This is a command packet. */
}
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| Ana Rey Botello | 1 | 0.06% | 1 | 8.33% |
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| Total | 1775 | 100.00% | 12 | 100.00% |
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